H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 8/02 (2006.01) C22C 38/00 (2006.01) C22C 38/18 (2006.01) C22C 38/44 (2006.01) C23C 14/24 (2006.01) H01M 8/10 (2006.01)
Patent
CA 2596409
Disclosed is a separator for fuel cells which is extremely excellent in corrosion resistance and electrical conductivity. Specifically disclosed is a separator for fuel cells comprising a base (1) made of a steel containing not less than 10.5% by mass of Cr, a metal film (3) formed over the surface of the base (1), and an intermediate layer (2) formed between the base (1) and the metal film (3). The metal film (3) is composed of at least one metal element selected from the group consisting of Ta, Nb and Ti, while the intermediate layer (2) contains Fe and Cr which are also contained in the steel, and at least one metal element selected from the group consisting of Ta, Nb and Ti which constitutes the metal film (3).
L~invention concerne un séparateur pour piles à combustible d~une excellente résistance à la corrosion et d~une excellente conductivité électrique. Elle concerne spécifiquement un séparateur pour piles à combustible comprenant une base (1) faite d~un acier contenant au moins 10,5% en masse de Cr, un film de métal (3) formé au-dessus de la surface de la base (1) et une couche intermédiaire (2) formée entre la base (1) et le film de métal (3). Le film de métal (3) est composé d~au moins un élément de métal sélectionné parmi le groupe consistant en Ta, Nb et Ti, tandis que la couche intermédiaire (2) contient Fe et Cr qui sont également contenus dans l~acier, et au moins un élément de métal sélectionné parmi le groupe consistant en Ta, Nb et Ti constituant le film de métal (3).
Neomax Materials Co. Ltd.
Osler Hoskin & Harcourt Llp
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